Evidence
13 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-13).
-
[1]research packet 1008-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-chehalis-pgm94-pkt-1008-packet-md
-
[2]DANFS, Chehalis II (PG-94) (Timothy L. Francis; updated Robert J. Cressman, 28 December 2023) - construction, commissioning, full service narrative, shipyard availabilities, Athena conversion, striking and disposal (live NHHC page verified 2026-10-04) [nhhc_danfs]
- Locator
- DANFS service narrative and spec block; entry 'Chehalis II (PG-94), 1969-2016'
- Finding type
- vessel_history
- Finding
- Documented for this hull: 'The second Chehalis (PG-94) was laid down on 15 August 1967 at Tacoma, Washington, by the Tacoma Boatbuilding Co.; launched on 8 July 1968 [launch date conflicts with NVR/NavSource 8 June 1968 - see gaps]; sponsored by Mrs. Oscar T. Mills, wife of the mayor of Chehalis, Wash.; accepted by the Navy on 4 November 1969 and commissioned on 8 November 1969, Lt. Paul D. Frazer in command.' Service: arrived San Diego 18 November 1969; Coastal Squadron Three; type training and fleet exercise Ropeval 2-70; final contract trials 21 April 1970. Entered Long Beach Naval Shipyard 5 June 1970 for post-shakedown repairs (out end of July); returned to Long Beach Naval Shipyard 1 February 1971 - 6 May 1971. Fleet and homeport change to River Squadron Two, Little Creek, Va., with sisters Beacon (PG-99) and Green Bay (PG-101), arriving 10 July 1971 via Acapulco and the Panama Canal. Operation Beaver Tail-71 (August 1971, Narragansett Bay); Operation Escort Tiger, Vieques (19 September - 3 October 1971). First Caribbean deployment February-July 1972 (Guantanamo Bay from 6 March; Haiti, Jamaica, Great Inagua). Second Caribbean deployment 4 January - 1 April 1973 (Guantanamo 13 January; Cap Haitien). Entered Norfolk Naval Shipyard 30 April 1973 for regular overhaul and anti-roll fin stabilizers (completed 17 September); re-entered Norfolk Naval Shipyard 1 October 1973 for stabilizer repairs, undocking 7 January 1974. Caribbean Escort Tiger XVI February-March 1974. Ordered 15 May 1975 to prepare for decommissioning and lease to the Naval Ship Research and Development Center; stripped of armament and converted to a towing platform at Norfolk Naval Shipyard; 'decommissioned on 22 August 1975 and, being reclassified as a "combatant craft or boat" the same day, renamed Athena.' Assigned to Naval Coastal Systems Laboratory, Panama City, Fla., for test and evaluation of high-speed acoustic sensors, towed devices, and other underwater systems. Stricken from the Naval Vessel Register 14 September 2016; scrapped subsequently. Spec block: displacement 240; length 164'6"; beam 24'0"; draft 9'6"; speed 40 knots; complement 24; armament 1 3-inch, 1 40mm, 4 .50-caliber machine guns; class Asheville.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1967-2016
- Population
- Tacoma Boatbuilding construction trades (1967-69); crew, Coastal Squadron Three / River Squadron Two (1969-75); Long Beach and Norfolk Naval Shipyard trades during availabilities (1970, 1971, 1973-75); NSRDC/Naval Coastal Systems Laboratory civilian and military test crews (1975-2016)
- Limitations
- Ship-specific history only; no asbestos or material content. DANFS launch date (8 July 1968) conflicts with NVR and NavSource (8 June 1968) - NVR carried; see gaps. DANFS decommissioning date (22 August 1975) supersedes the 1 October 1977 date circulating in secondary sources (NavSource, NavalCoverMuseum, Wikipedia). The DANFS entry does not document what materials were worked during the Long Beach or Norfolk availabilities.
- Atlas source
- true
- Evidence ID
- ev-uss-chehalis-pgm94-01
-
[3]Naval Vessel Register, Ship Details - CHEHALIS (PG 94), '(ex - PGM 94)', PATROL COMBATANT, Class PG 92, UIC 20087 (live NVR page verified 2026-10-04; page last updated 30 June 2017) [other_primary]
- Locator
- NVR getHull shipId=2900, Vessel Status + Milestone Dates + Comments blocks
- Finding type
- vessel_history
- Finding
- The official Naval Vessel Register entry for this hull records: designation PG 94, '(ex - PGM 94)', patrol combatant, class PG 92, UIC 20087; Status 'reclassed to combatant craft or boat', date status changed 08/22/1975; Commission Date 11/08/1969; Launch Date 06/08/1968; Decommission Date 08/22/1975; Stricken Date 09/14/2016; Comments field: 'PG 94 CHEHALIS WAS CONVERTED TO A BOAT AND RENAMED ATHENA (165NS761) ON 22 AUGUST 1975'. The NVR 'ex - PGM 94' notation confirms the hull was formally designated PGM-94 before the 1 April 1967 PGM-to-PG class redesignation.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1967-2017 (register coverage)
- Population
- Crew (1969-75); NAVSEA research-vessel crews and embarked scientists (1975-2016)
- Limitations
- Registry data only; no asbestos or material content. NVR 'Age (since Launch)(At time of Disposal): 58.4' is internally inconsistent with a 2016 strike (1968 + 58.4 implies ~2026-27) and is not relied on - the milestone dates are authoritative. Resolves the launch-date conflict in favor of 8 June 1968 (against DANFS's 8 July) and the decommission-date conflict in favor of 22 August 1975 (against the 1 October 1977 circulating in secondary sources).
- Atlas source
- true
- Evidence ID
- ev-uss-chehalis-pgm94-02
-
[4]NavSource Online: Motor Gunboat/Patrol Gunboat Photo Archive, PG-94 Chehalis - timeline, specifications, commanding-officer list, photographic record (live navsource.net page verified 2026-10-04) [other_primary]
- Locator
- NavSource 12/11094.htm header block, specifications block, photo captions, CO table
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: 'The second Chehalis was laid down in 1967 at Tacoma Boatbuilding Co., Tacoma, WA; Launched 8 June 1968; Commissioned USS Chehalis (PG-94), 8 November 1969; Decommissioned 1 October 1977 [see gaps - conflicts with NVR/DANFS 22 August 1975] and transferred to the Naval Sea Systems Command, Carderock Division; Converted to a Research Vessel and renamed R/V Athena; ... Scrapped in 2016.' Specifications: displacement 250 t.; length 165'; beam 24'; complement 28; speed 13 kts on diesel and 40 kts on gas turbine; armament one 3"/50 gun mount, one 40mm gun mount, two twin .50 cal. machine guns; propulsion two Cummins VT12-875-M diesel engines rated at 725 hp each and one General Electric LM 1500 gas turbine, two shafts. Photographic record places this hull at Guantanamo Bay outboard of Green Bay (PG-101) and Beacon (PG-99); in flooded drydock at Norfolk Naval Shipyard, Portsmouth VA, bow-to-bow with Beacon, 1 October 1973; and as R/V Athena in Naval Sea Systems Command photography alongside R/V Athena II (ex-Grand Rapids PG-98). Commanding officers listed: LT Paul D. Frazer (commissioning, 1969) through LT John H. O'Neill Jr. (to 21 August 1975).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1967-2016
- Population
- Tacoma Boatbuilding trades (1967-69); crew (1969-75); Athena research crews (1975-2016)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - its decommission date (1 October 1977) is contradicted by both NVR and DANFS (22 August 1975) and is carried only as a logged conflict; complement 28 conflicts with DANFS 24; displacement 250 t. and speed 13/40 kts conflict with DANFS 240/40 kts and the Carderock data sheet's 35 kts turbine figure. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-chehalis-pgm94-03
-
[5]Carderock Division, Naval Surface Warfare Center (NAVSEA), 'Research Vessel Athena' facility data sheet, page updated 22 April 2004 - official U.S. Navy specifications for the converted hull (archived via Wayback Machine 30 September 2005 capture; live dt.navy.mil host is dead) [other_primary]
- Locator
- Carderock Division hyd/fac/res-ves-ath/fac-dat-she specifications table; hyd/fac/res-ves-ath general description (Wayback captures)
- Finding type
- vessel_history
- Finding
- Official Navy facility data for the post-1975 research configuration of this hull: length overall 165 ft; extreme beam 24 ft; draft 10.5 ft; twin screw driven by two Cummins VT12-875-M diesels rated 725 h.p. each, with one GE LM 1500 gas turbine driving both propellers through a first and two secondary gearboxes for high speed; 13 knots on diesel, 35 knots on turbine; range 2,300 n.m. at 13 knots; two 100 kW ship-service generators plus one 60 kW lab generator; berthing for 28 (10 crew, 18 scientists); 366 sq. ft. air-conditioned lab space; 850 sq. ft. clear aft deck. The companion facility page documents that 'Athena I & II have seen extensive service in the development of high speed towed sensors, airborne mine countermeasures, communication systems, and full-scale validations of model predictions for propeller wake surveys and propeller stress studies.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1975-2016 (research-vessel era); page dated 2004
- Population
- Carderock Division / Naval Coastal Systems Laboratory research crews and embarked scientists (1975-2016)
- Limitations
- Archived official page (Wayback 2005 capture of a 2004-dated sheet) - not a live source. Does not itself name the hull as ex-PG-94/ex-Chehalis; the hull identity rests on DANFS/NVR/NavSource, and 'Athena I & II' refers to this hull (ex-Chehalis PG-94) plus Athena II (ex-Grand Rapids PG-98) per NavSource - the data sheet cannot distinguish which Athena it measures (sisters are near-identical). Turbine speed 35 kts conflicts with NavSource's 40 kts. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-chehalis-pgm94-04
-
[6]NavSource Motor Gunboat (PGM) Index - class-wide designation note and Asheville-class grouping for PGM-92 through PGM-101 (live page verified 2026-10-04) [other_primary]
- Locator
- NavSource 12/11idx.htm class-redesignation note and PGM-92..101 ship index
- Finding type
- vessel_history
- Finding
- Designation context for this hull's dual PGM-94/PG-94 identity: 'All Motor Gunboats (PGM)s, hull numbers 84 and greater, in the U.S. Navy inventory 1 April 1967 were redesignated Patrol Gunboats (PG)s. The term Motor Gunboat now applies primarily to craft built for allied navies.' The index lists this hull as PG-94 Chehalis within the 'Asheville Class Motor Gunboat (Continued), PGM-92 to PGM-101' grouping. Keel laid 15 August 1967 - four months after the redesignation took effect - so the hull carried PGM-94 on the order books (confirmed by NVR's 'ex - PGM 94') but was built and commissioned as PG-94.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1967 (designation change); hull ordered/built 1967-69
- Limitations
- Secondary index page documenting a Navy-wide 1967 designation change; the 'PGM-94' form is canonical in secondary literature (Wikipedia article title, file slugs) even though the vessel served only as PG-94. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-chehalis-pgm94-05
-
[7]DANFS, Might (PG-94) - WWII corvette sharing this hull number (live NHHC page verified 2026-10-04) [nhhc_danfs]
- Locator
- DANFS Might (PG-94) entry
- Finding type
- vessel_history
- Finding
- HULL-NUMBER REUSE - DISTINCT VESSEL: PG-94 was previously held by USS Might, a WWII-era corvette acquired by the Navy 20 July 1942, renamed Might 4 August 1942, 'classed as a gunboat, was given the identification number PG-94; and commissioned at Quebec on 22 December 1942.' Might (PG-94) is a completely different hull - a 1942 Canadian-built corvette - and any record referencing 'PG-94' for the 1942-1945 period, or describing PG-94 as a corvette, belongs to Might, not to this patrol gunboat.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1945 (Might era) vs 1967-2016 (this hull)
- Limitations
- Identity disambiguation only; no asbestos content. Litigation, registry, or historical records citing 'PG-94' must be date-checked: pre-1946 = Might; 1967-2016 = this hull. Secondary aggregator conflation of the two hulls is observed in the wild (e.g., vetfriends.com describes this Chehalis PG-94 as a WWII Canadian corvette launched 1943).
- Atlas source
- true
- Evidence ID
- ev-uss-chehalis-pgm94-06
-
[8]DANFS, Chehalis I (AOG-48) - WWII gasoline tanker sharing this name (live NHHC page verified 2026-10-04) [nhhc_danfs]
- Locator
- DANFS Chehalis I (AOG-48) entry
- Finding type
- vessel_history
- Finding
- NAME REUSE - DISTINCT VESSEL: the first Chehalis (AOG-48) was a Patapsco-class gasoline tanker 'named for the river in the state of Washington' - this hull (PG-94) was 'named for the city in the same state.' AOG-48 was laid down 6 November 1943 at Savage, Minn., by Cargill, Inc.; commissioned 5 December 1944; and destroyed 7 October 1949 when a gasoline tank exploded alongside the navy dock at Tutuila, American Samoa, killing six of her 75-man crew; the ship capsized and sank; stricken 27 October 1949; salvaged hulk sold to the government of American Samoa under a contract of 21 October 1955. Any 'Chehalis' record for 1943-1955 or referencing the Tutuila sinking belongs to AOG-48, not this hull.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1955 (AOG-48 era) vs 1967-2016 (this hull)
- Limitations
- Identity disambiguation only; no asbestos content. Name collision matters in litigation indexing: 'USS Chehalis' dockets or marketing pages (e.g., asbestos-ships.com's AOG-48 page) may address the tanker rather than this patrol gunboat.
- Atlas source
- true
- Evidence ID
- ev-uss-chehalis-pgm94-07
-
[9]GAO, Navy's Efforts to Protect Workers From Asbestos Exposure, HRD-80-2 (B-163375, 18 October 1979; fieldwork at Long Beach and Norfolk Naval Shipyards; full text via firecrawl extraction of gao.gov/assets/hrd-80-2.pdf - direct fetch 403) [gao]
- Locator
- GAO HRD-80-2, letter report pp. 1-4 (use-of-asbestos narrative: 1973 spec change, May 1978 deliveries, October 1975 and January 1979 policies); fieldwork at Long Beach and Norfolk Naval Shipyards
- Finding type
- gov_survey
- Finding
- Government documentation of the Navy asbestos-use era covering this hull's construction and repair history. GAO records: 'although product specifications for thermal insulation had been changed in 1973 to specify the use of asbestos-free materials, asbestos materials had already been purchased and in some cases installed in ships under construction. Therefore, some ships were delivered with asbestos insulation as late as May 1978' - this hull was delivered 4 November 1969, before even the 1973 specification change, squarely inside the asbestos-use era. Per the Navy, 'all ships contain some asbestos in such components as clutches and electric cables,' though 'most ships delivered in the last several years or now under construction have little or no asbestos as thermal insulation, which was the Navy's major use of asbestos aboard ships.' The Navy's October 1975 policy was to remove and replace with nonasbestos materials only insulation that was damaged or had to be removed for repairs; modified January 1979 to include selective replacement in high-maintenance areas. GAO's fieldwork was conducted at the Long Beach and Norfolk Naval Shipyards - the same two yards where this hull underwent documented availabilities (LBNSY June-July 1970 and February-May 1971; NNSY April 1973-January 1974 plus the 1975 Athena conversion).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1979 (report); policies 1973-79 covering this hull's 1967-69 construction and 1970-75 availabilities
- Population
- Navy shipyard workers at Long Beach and Norfolk Naval Shipyards (the yards that worked this hull); Navy-wide shipboard population context
- Limitations
- Program- and yard-level documentation; does not name this hull or any patrol gunboat and does not establish that asbestos was installed aboard or removed from PG-94. The 'little or no asbestos as thermal insulation' statement describes then-recent deliveries (mid-1970s); this hull predates even the 1973 asbestos-free specification change. Direct PDF fetch returns HTTP 403 (Akamai); full text obtained via firecrawl extraction. Does not establish individual exposure, quantity, or present-day presence.
- Atlas source
- true
- Evidence ID
- ev-uss-chehalis-pgm94-08
-
[10]Era inference built on: DANFS spec block and service narrative (CODOG Asheville-class gunboat, built 1967-69, delivered 4 November 1969); NavSource specifications (2x Cummins VT12-875-M diesels + 1x GE LM1500 gas turbine, 2 shafts); GAO HRD-80-2 (1973 asbestos-free insulation spec change postdates this build; 'all ships contain some asbestos in such components as clutches and electric cables'; asbestos-insulated ships delivered as late as May 1978) [other_primary]
- Locator
- DANFS spec block; NavSource specifications; GAO HRD-80-2 pp. 1-4
- Finding type
- asbestos_application
- Finding
- A patrol gunboat ordered and built 1967-69 sits inside the Navy's documented asbestos-use era - the asbestos-free thermal-insulation specification change (1973) postdates her construction by about four years, and asbestos-insulated ships were still being delivered as late as May 1978. Era-standard applications aboard a small CODOG combatant of this period were thermal insulation and lagging on machinery and exhaust runs (including the gas-turbine exhaust trunking for the LM1500), gaskets, valve packing, electrical cable insulation, and clutch components - the last two matching GAO's Navy-wide 'all ships' statement for clutches and electric cables. As a diesel/gas-turbine craft she carried no steam plant - the boiler/turbine lagging pathway of steam vessels does not apply.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1967-2016
- Population
- Tacoma Boatbuilding construction trades (1967-69); crew (1969-75); LBNSY/NNSY yard trades (1970, 1971, 1973-75); Athena-era crews and scrappers (1975-2016)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, work package, or hazmat record located for PG-94/Athena. Names era-standard applications, not confirmed installed materials. No quantity. The 1973 spec change and 1975/1979 removal policies also mean insulation worked during her 1973-75 NNSY availabilities may have been nonasbestos replacement material - direction of residual risk unknowable without yard records.
- Atlas source
- true
- Evidence ID
- ev-uss-chehalis-pgm94-09
-
[11]Washington State Department of Ecology, Cleanup and Tank Search site 3672 'Tacoma Boatbuilding Ace Tank', 1840 Marine View Dr, Tacoma (Facility Site ID 1224; live page verified 2026-10-04) [other_primary]
- Locator
- WA Ecology cleanupsearch site 3672 - site status, details, site-description text
- Finding type
- environmental_record
- Finding
- The builder's yard for this hull is a documented state cleanup site: WA Ecology lists the former Tacoma Boatbuilding property at 1840 Marine View Dr, Tacoma, as cleanup site 3672 ('Tacoma Boatbuilding Ace Tank'), status 'Cleanup Complete-Active O&M/Monitoring' under Ecology supervision, earliest record 3 January 1988, with 15 site documents and 2 contaminants; 1991-1996 testing documented sandblasting grit contamination of soil and sediments along the Hylebos Waterway - part of the Commencement Bay Nearshore/Tideflats Superfund area.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-04
- Study period
- 1988-present (cleanup record); yard operated through the hull's 1967-69 construction
- Population
- Tacoma Boatbuilding yard workers (operations era); cleanup contractors (1990s-2000s)
- Limitations
- Builder-yard environmental context only: the listing is contemporaneous and post-dates this hull's 1967-69 construction; the documented contaminants are sandblasting grit and related hazardous substances - asbestos is not among the contaminants named on the listing. Does not establish any material aboard this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-chehalis-pgm94-10
-
[12]BEREI v. AIR & LIQUID SYSTEMS CORP., E.D. Pa. 2:12-cv-60166, In re: Asbestos Products Liability Litigation (No. VI), MDL-875 (J. Eduardo C. Robreno) - docket hit on the indexed string 'USS Chehalis' within filed documents (CourtListener API v4 docket search, authenticated, 2026-10-04) [court_record]
- Locator
- CourtListener docket 4370177, E.D. Pa. 2:12-cv-60166; query 'USS Chehalis' type=r, hit within indexed document text (verbatim string)
- Finding type
- litigation_documented
- Finding
- An asbestos personal-injury case in the federal MDL-875 docket (suitNature '368 P.I. : Asbestos'; cause '28:1332 Diversity-Asbestos Litigation') in which the string 'USS Chehalis' appears in the docket's indexed filed documents: John T. Berei, represented by Weitz & Luxenberg, sued Air & Liquid Systems Corp. and other defendants in E.D. Pa. under the consolidated asbestos MDL; filed 3 July 2012, terminated 13 November 2013. Indexed document text includes the defendant's motion for summary judgment (doc. 53, filed 15 April 2013); the vessel-name string occurs within the docket's indexed filings but its location is not exposed in search snippets.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2012-2013 (case pendency); exposure period unspecified in index
- Population
- John T. Berei (plaintiff); any service aboard the referenced hull unspecified in index
- Limitations
- PLEADING-STAGE AT MOST - an indexed 'USS Chehalis' string inside MDL-875 docket filings is an allegation, not a finding: no adjudicated determination that asbestos exposure occurred aboard any vessel. Two unresolved ambiguities: (1) which filing carries the mention and in what context (plaintiff vessel-list allegation vs other reference) - search snippets do not expose it and fetching the document would bypass the fleet-rate-limited helper, so it was not retrieved; (2) which Chehalis the reference names - this hull (PG-94) or the WWII gasoline tanker Chehalis (AOG-48), whose era is the more common asbestos pleading - the indexed text does not disambiguate. The defense summary-judgment posture at doc. 53 is consistent with the ordinary MDL sequence and says nothing about exposure aboard this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-chehalis-pgm94-11
-
[13]Batch-8644 search ledger (this record): live DANFS (Chehalis II + Might PG-94 + Chehalis I AOG-48); live NVR ship-detail page; live NavSource ship and class-index pages; archived Carderock Division R/V Athena data sheet; GAO HRD-80-2 full text; WA Ecology site 3672; NavalCoverMuseum; NARA deck-log index; CourtListener (authenticated helper); secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-chehalis-pgm94-01 through -13
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or adjudicated litigation naming USS Chehalis (PGM-94/PG-94) or R/V Athena was found in the public sources searched. CourtListener (authenticated): 'USS Chehalis' opinion search returned zero results; 'USS Chehalis' docket search returned 46 hits - first-page hits classified as name collisions except BEREI v. Air & Liquid Systems Corp. (ev-11, pleading-stage; hits 21-46 unviewed, variant check paced out); 'PG-94' opinion and docket searches returned bulk page-number collisions (3,662 and 53,063 hits) with no qualifying vessel or asbestos hits. Secondary web sweeps surfaced only law-firm marketing content - mesotheliomaveterans.org lists 'USS Chehalis (PG-94)' among 'patrol boats that relied on asbestos' with no primary sourcing (excluded by source policy), and asbestos-ships.com's 'USS Chehalis' page covers AOG-48, the different sunken tanker hull. No government, museum, or archival source documenting asbestos aboard this hull was located.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2026-10-04
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - her construction era (delivered November 1969, before the 1973 asbestos-free insulation spec change) is consistent with era-standard asbestos use. All four required CourtListener base queries completed; the asbestos-qualified docket variant sanctioned for the 46-hit name overflow was attempted but repeatedly paced out by the shared fleet budget (optional, not required). Deck logs, Tacoma Boatbuilding build records, and NNSY/LBNSY work packages are undigitized leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-chehalis-pgm94-12